Collapsible folding box



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S. F. SUTHERLAND COLLAPS I BLE FOLDI NG BOX Original Filed May 17, 1921Rm 2 9 l 6 2 M :m 2 9, l 6 2 M s. F. SUTHERLAND COLLAPSIBLE FOLDING Box'4 Sheets-Sheet 5 Original Filed May 1'7, 1921 To all whom it mayconcern:

Reissuecl May 26, 1925."

UNITED STATES PATENT OFFICE.

STAFFORD F. SUTHERLAND, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SUTH-VANIA, A CORPORATION OF DELAWARE.

COLLAPSIBLE FOLDING Box.

OriginalNo. 1,443,055, dated J'anuary 23, 1928, SerialNo. 470,328, filedMay 17, 1921. Application for reissue filed January 9, 1925. Serial No.1,501.

Be it known that I, STAFFORD F. SUTHER- LAND, a citizen of the UnitedStates, residing in the city and county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inCollapsible Folding Boxes, of which the following is a specification. v

My invention relates to folding-boxes and especially to that type knownas collapsible boxes, and the object of my'invention is to provide animproved box of this character, that is simple in construction,inexpensive of manufacture, and can be very easily and very quickly setup (erected in box form) and is securely held in erect position after itis set up, and also presents a very neat appearance. Another object ofmy invention is to provide a collapsible foldmg box, that may be made ofcheap box-board (such as is now used in the making of what is known assetup boxes, boxes that are made set-up or erect and are notcollapsible) and covered or partly covered with paper or other suitablematerial. I

A further object of my invention resides in a novel method ofconstructing the above type of box, snch method being well adapted to bepractisedeither by hand or machinery. The objects and advantages ,of myim proved box willbe readily apparent in this specification when takenin connection with the accompanying drawings, in which Fig. l is theblank of the box; Figure 2 is a facingstrip; Figure 3 showsfacing-strips attached to opposite ends of the blank; Figure 4 shows theopposite side-walls of the box folded inwardly; Figure 5 is areinforcing strip; Figure 6 shows reinforcing strips attached to thepaper flaps; Figure 7 shows the complete box with the flaps foldedinwardly on the box; Figure 8 is a covering-trip; Figures 9 and 10 showcovering-strips attached to opposite side-walls of the box: Figure 12 isa facing-strip; Figures-11 and 13 show facing-strips (Fig, 12) attachedto opposite end-walls of the box: Figure 14 is a holding-flap; Figures15 and 16 show the complete box with holding-flaps attached; Figure 17is a blank of the box cover; Figure 18 shows this blank entirely coveredwith paper; Figure 19 shows opposite side-walls of the cover foldedinwardly; Figures 20 and 21 show the complete box cover withholding-flaps attached. Figure 22 is a perspecsingle piece ofpaper-board or other suitable material, and it is scored or creasedlongitudinally at the dotted lines 2 and transversely at the dottedlines 3, so as to facilitate the bending or folding of its various partsat these lines in forming the box, and this blank comprises thefollowing foldable parts, a

bottom A, opposite side-walls B integrally connected with the bottom,opposite endwalls C integrally connected with the bottom and triangularcorner-flaps D integrally connected with the side-walls. A strip ofpaper or other suitable light material (Fig. 2), and which I will callthe facing-strip E, is gummed to the outer face of each end-wall C andthe adjacent triangular corner-flaps D, as shown in Figure 3,"and itwill be seen that this facing-strip extends across the blank and coversthe end-wall and both triangular corner-flaps' and connects them, and italso extends outwardly beyond the edge 4 of the end wall, and the objectof which will-be presently understood. The side walls Band thecorner-flaps are then folded inwardly on the blank as shown in Figure 4,and a strip of heavy paper or'light box-board (Figure 5), and which Iwill call the reinforcing strip F, is gummed to the part 5 of thefacingstrip' E that projects outwardly beyond each end wall, as shown in6, and thus forming a flap which I will call the holding-flap G andwhich holds the box in an upright position when it is set up. In thisset-up condition of the box the endedges of theholding or locking flapsG frictionally engage the side-walls or members of the box andare thusheld in locking position. Fig. 7 is the complete box, in its flat orcollapsed form, with the holding flaps G folded on'the box.

When it is desired to have all the walls of the box covered, this may bedone in the following mannera strip of paper (Fig. 8), which I will callthe covering-strip H, is pasted to the outer face of each side.

wall B with the lower edge 6 of the paper pasted to the bottom of thebox and its upper edge 7 turned over and pasted to the inner face of thewall, as shown in Fig. 9, and the projecting ends 8 of the coveringstripare turned in and pasted down, as shown in Fig. 10. The side-walls andcorner flaps are then folded" inwardly on.

the blank, as shown in Fig. 11, and a facing-strip E (Fig. 12) is pastedon the outer face of each end-wall and projects outwardly beyond theouter edge of the end-wall, as shown in Figs. 11 and 13. In Fig. 11 thefront, and in Fig. 13 the back, of the box is shown, with thefacing-strip attached. A holding-flap G (Fig. 14) that is creased,scored or slit at the dotted line 9., is attached to each end of the boxas shown in Fig. 15; the part 10 of this flap is inserted between theinner face/of the end-wall and .the inturned parts 8 of the facing-stripand is gummed to these inturned parts, and the projecting part 11 of thefacing-strip is gummed to the flap. Fig. 16 shows the holding-flap Gfolded inwardly on the box} Fig. 17 is the blank of the box-cover whichn is practically the same as the blank Fig.

1 of the box, and this blank is entirely covbred on its outer face by apaper strip or sheet as shown in Fig. 18 and which I will call thefacing-strip or covering-sheet J." Opposite projecting edges 12 of thiscovering-sheet or facing-strip are turned over the outer edges ofthe'side-walls B and pasted on their inner faces, and the ends 13 of thesheet extend outwardly beyond the outer edges 14 of the end-walls C. Thesidewalls and triangular flaps D are then folded inwardly on the blankas shown in Fig. 19 and a holding flap G attached to each end,asshownfin Fig. 20. Fig. 21 shows the complete box cover with theholding-fiapS-folded inwardly on the cover. It

is of course obviousthat the box may be covered in the same manner asits cover, or the'cover may be covered in the same manner as the box. Insetting up (erecting) the box or its cover, from its flat form, it isonly necessary to grasp both end-walls and push them to an erectposition and the side-walls will automatically move to an erect positionalso; the other. movable parts automatically moving to their respectivepositions, the holding-flap moving downward in the interior of the box,and against the innfir face of the corner-folds and the endwa r Fig. 22shows the box partly set up,

Fig. 23 the box, fully set up, and v Fig. 24 the box with its cover onit.

In all forms of the invention it will be obvious that the essentialsteps inthe method of formingthe box are the same. For instance, in allof the modifications,

the facing material, whether formed of 'sevi eral strips or a singlestrip or sheet, is atare attached to the ends of the facing strip orstrips.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent-is:

1. A collapsible box including integral foldable side and end walls,corner flaps on said side walls, a facing strip secured to the side andend walls and corner flaps, and locking flaps .secured to said facingstrip.

2. A collapsible box including integral foldable side and end walls,corner flaps on said side walls, flexible means connecting said cornerflaps and end walls, and locking flaps secured ,to said flexible means.-

In a collapsible box having integral foldable side and end walls, afacing strip secured to the side walls and an end wall,

and a locking flap secured to the facing strip.

4:. In a collapsible box having integral foldable side and end walls, afacing strip secured to the side walls and end walls and locking flapssecured to the facing strip, said locking flaps being of substantiallythe same depth as the end walls.

5. In a collapsible box having integral foldable side and end- Walls,corn-er flaps on the side walls, a facing strip connecting a pair of thecorner flaps and an end wall, and a locking flap secured to the facingstri 6. In' a collapsible box having integral foldable side and endwalls, a facing strip secured to the side walls and end walls andlocking flaps secured to said facing strip, the facing strip adapted toform corner folds.

7. The herein described method of forming collapsible boxes whichcomprises a slightly beyond the ends of the blank, fold- 1 ing the sidewalls of the blank and the facing material carried thereby onto thebottom of the .blank, and attaching lockmg ,flaps to the, ends of thefacing material.

9. The herein described method of form ing collapsible boxes whichcomprises ap-v plying facing material to a box blank having'a bottom,side and end walls and corner flaps, folding the side Walls of theboxblank plying facing strips to the end Walls of and facing' materialcarried thereby onto the box blank, folding the side Walls of the 1 thebottom of the box blank, and attaching" box blank onto the bottom of theblank, locking flaps to the ends of the facing nmand attaching lockingflaps t0 the ends of 5 terial. the facing strips.

10. The herein described method of forming collapsible boxes whichcomprises ap- STAFFORD F. SUTHEBLAND.

